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Wurzil

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About Wurzil

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    Star Forming

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    north kent
  1. :DI can almost see you tutting and shaking your head at my abuse of the mount:D!! Im basically looking for the largest apeture without going for a dob, on a small budget - which probably means re-using my CG-4. (It is indeed the steel tube one not the aluminium type btw) TBH this is all blue sky stuff at the moment anyway, but i will definitely look into vibration pads and other tips to reduce vibration, when weighing up the options/price. In fact i could probably do with the vibration pads/hanging weights with my current set up so thanks for the tip. Any idea what a 8"SCT OTA will cost second hand - i cant find one on ebay/astrobuysell?? W
  2. to be honest Venus is often troublesome, due to atmospherics - the lower things are in the sky the more they wobble around (like heat haze from a road). This effect gets more apparent the more you magnify. Many times I have looked at it and just got a little"twinkly rainbow splat". Even on the best of days all you will see will be a small bright crescent shape - there are no surface details to be had. Also achromatic refractors have a tendancy to have some "purple" around bright objects (like venus!). You should be able to get around 150x mag out of your scope before objects start to look too fuzzy. Have a look at Saturn before you decide whether your expectations were too high. Warren
  3. Thanks Johnathon - i think more apeture will probably be the order of the day and as peter says the 8"SCT is is the same weight as the current scope currently mounted (omni xlt 120mm frac 1m long and 5.67kg). I might try and bully my flatmate into finding a second hand one of those, and then buy it off of him when he loses interest again!! In all honesty I think the SCT idea will probably end up too expensive, so he'll end up getting another 10 or 12" dob ps - Just checked the weight of the skymax 150 and its 5.6kg as well! It seems all telescopes weigh 5.6kg:confused: Warren
  4. ahh I know what you mean then, about the undermounting- my setup does wobble (and does not like too much wind) - but im kind of used to it as its all ive known! I try not to touch the scope when im looking through then EP, and when im using the slow mo tracking controls i do so very gently and as slow as i can. w
  5. thanks for the weights and advice peter - so the 8" sct would be no good then?? Strangely I managed to find the weight of the refractor that came with the mount - which is also 5.67kg - surely the sct would be better as its shorter and will have less angular errr......thingy<insert proper scientific term> http://www.celestron.com/astronomy/telescopes/celestron-omni-xlt-120.html W
  6. hi all - my flatmate expressed an interest in buying another scope today. He had a 10" dob a year or two ago and ended up selling it as it was taking up too much space and it was hard to keep things in view (the scope was second hand and maybe needed lubricating or something). So my question is - will an 8 inch SCT/MAK be ok on my manual CG-4 mount - im not sure of the payload tolerances for the mount or the actual weight of the OTAs such as the 8SE or an 8" MAK. Also....where the hell can i find a second hand SCT now that the buy sell section has gone...what happened there??? Oh and how much should i expect to pay for a second hand one?? Thanks in advance guys warren
  7. S.J - a 6mm planetary EP without a barlow might work nicely for Mars, and of course make sure youre all collimated and cooled down. w
  8. That sucks Paul - but you know what they say, good things come to those who wait warren
  9. Dont give up with Mars - even with a small scope! For me in 2010 Mars only delivered surface detail when very close to its opposition with us (march 3rd this time). Mars is going to be almost (but not quite) the same apparent size as it was in 2010, although I dont think it will get as high in the sky, so the seeing will probably be at more of a premium. Just so you know (and to give you some hope) - my scope has a smaller apeture than yours and i could clearly make out an ice cap and a dark area (Syrtis Major) last time around. I was using EPs to give mags of 166x and even up to 200x!! Seeing conditions count for a lot with planets - even if you have a huge scope capable of giving detail up to 300x, it will do you no good if the seeing conditions only allow for 150-200x. Also I find with a large scope that Mars/Jupiter can be too bright, which washes out all the colour and detail, and then have to put filters on, or cover most of your apeture anyway! Dont give up, and you might get a nice suprise if the seeing is good at the beginning of March. Warren
  10. I googled and found this explanation with some diagrams and stuff - basically the apparent angle of the moon relative to the horizon is different in the winter. Why is the crescent moon sometimes lit on the bottom? Warren
  11. Is your scope gonna be the ED version (3xthe price) or the achromatic version? I have the celestron version of the evostar 120 (not ED). I dont do photography so i cant comment on that except that if you get the cheaper, achromatic scope like mine you will get colour fringing on the moon and planets (like a purple haze around the object). I dont think many people do astrophotography with achromatic refractors scopes. I can just about get 250x magnification (absoulte maximum!) for use with the moon and planets using a 5mm EP. Jupiter looks about the size of a 5p piece held at arms length in my eyepiece at the moment, the other planets are smaller but definitley not pinheads! w
  12. also if u havent already - download stellarium for your pc and google skymaps or SKEYE for your smartphone. they are awesome for helping to learn the sky. warren
  13. Thanks to the BBC for the "stargazing live" programs on bbc2. More of this please-& anything with Brian Cox-his enthusiasm is both contagious and captivating. A couple of suggestions for the next shows:Please do a set of shows for each season.How about a live stream to somewhere nightime - not Hawaii! Also live webcamming from ameteur contributors. my twopenneth w
  14. I definitely thought tonights show was better - it held my attention more and it didnt go from ultra dumbed-down to disjointed and wishy washy like last nights show. Loved the andromeda infra-red-Xray image, and that hawaii-guys animation of the sun spurting out into space. Brian cox is a legend in the making. I must say though, that doing a live stargazing show in the UK is so risky due to the weather - so why havent they done a live stream to somewhere that is dark instead of hawaii which is daytime? Surely the canaries or somewhere would have been a better choice for a live stream (to watch for the meteor shower etc). A massive, massive mistake in my opinion. i give the show 7 out of 10 so far, and my own personal hurrah:D W
  15. Ive always liked this story by Robert Heinlein. Its an enjoyable read and gives a good example of time dilation. Time for the Stars - Wikipedia, the free encyclopedia W
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